Therapeutic apparatus.



No. 834,209. PATENTED OCT. 23, 1906. E. KROMAYBR.

THERAPEUTIC APPARATUS.

APPLICATION FILED JULY16, 1905.

wa'fizedaadf 1721/1672 Z02 2777a) ZfiY/l/Z yen 4 UNITED STATES PATENT; OFFICE.

ERNST KROMAYER, OF BERLIN, GERMANY.

THERAPEUTIC APPA ATus To whom it may concern.-

Be it known that I, ERNST KROMAYER,

professor of medicine, a citizen of the Ger-.

emitted from an electric-arc lamp are directed against the skin in a most concentrated state by means of a system of lenses; but care must be taken that the blood circulating in the skin is pressed away from the capillary vessels of the part to be exposed by means of a compressing-lens, so that the rays are not absorbed by the blood, but may 1pnpetrate to the lower or deeper parts of the s For this purpose a compressing-l ens consisting of glass or quartz is used, which is pressed a ainst the part of the skin to be radiated. Tie compressing-lens at the same time is to rotect the skin from being warmed too 'ghly, and therefore is made hollow and cooled b water circulating therein. This method s ows some disadvantages, b which its use in there y is rendered ifiicult. The compressingens being separated from the source of light, a speclal collect' -l'ens had to be arranged, by means of whic the rays were concentrated, and in consequence of such a collecting-lens only small parts of the skin (of a diameter of about three-fourths centimeter) could be treated. Mucous membranes-t0 which access is diflicult to be had could not be treated at all according to this method. 7

The treatment of diseases of the skin has further been carried out by means of the so. called Dermo lamp, the source of light of 3 which being arranged within a double-walled casing cooled by means of water. The cooling-jacket surrounds the source of light in a distance of several centimeters and only serves for protecting the person manipulating with the apparatus from the rays, a cooling of the source of li ht being neither intended nor obtained. n the cooling-jacket the casing of quartz is arranged, serving for Specification of Letters Patent.

Application filed July 16, 1905. Serial No. 269,809-

Patented Oct. 98,1900;

obvious, also cannot serve for directl cooling the source of light. The wires or the electric current and the pipes for circulating the cooling medium were arranged in the hollow handle fastened at the Dermo lamp in a suitable manner.

The disadvantages shown by the apparatus'hitherto used are avoided b the present invention, the chief feature 0 which. consists in the lamp emitting the light being directlyv embedded in the cooling-bath, and therefore being wholly surrounded by the cooling medium. If it be intended to expose to the rays deeper parts of the skin, the cool compressing and cooling the part of the skin under radiation, which casing of quartz, as is 7 ing-casing may be constructed in .such. a

manner that the part adjacent to the skin to be radiated can'be used at the same time as a cooling and compressing lens. The present a paratus essentially sim lifies the thera eutlc radiation process. he source of ight being arranged within the cooling-bath, a higher intensit of the electric current may be made use 0 and the source of light may be brought nearest to the skin, the rays thus acting in a more immediate and intensive manners As regards the source of light, the so-called mercury-lam is most suited for my purpose, as it may e given every suitable form corresponding to the place and size of the part of the skin or the mucous memably bent in the form of a serpentine in order to radiate larger parts of the skin.

The invention is shown in the annexed drawings.

Figure 1 fis a vertical slectional view f f an a aratus or ex osing ar er arts 0 the SEE] to the radiation. Fig. 2 is horizontal section according to line a: a: of Fig. 1.

With the ap aratus re resented I use as source of light the so-calle mercury-lamp but Ido not confine myself thereto, as any other suitable source may be made use of.

Corresponding to the slze of the part of the skin to be treated, the mercury-lamp has the form of a glass tube a, bent several times in form of a se entine. tube are fill with mercury c and provided with the electrodes b. The wires m serve for the conduit of the electric current. The mercury-tube ais inclosed in a casing 11, provided with a cover n, of glass, quartz, or the like, which latter serves as a compressing- IIO lens" 'Ihe cooling-water is fed to the casing d by means of the pipe g and branch ipe 11 and discharged by means of the pipes and h. The casing d is rovided with a handle 1, of caoutchouc or the like, in which are arran ed the i es forcirculating the cooling me ium an 516 wires m for circulating the electric current.

In order to concentrate the rays to the it is not necessary to bring the "apparatus in contact therewith.

Having now particularly described and ascertained the nature of my said invention and iii what manner the same is to be performed, I declare that what I claim is 1. In an apparatus of the class described, a casing havin a broad and substantially flat compressingens, a source of ii ht supported within the casing, and means or circulating a cooling medium through the casing.

2. In an apparatus of the class described, a casing havin a broad; and substantially flat compressingens, a trans arent, serpentine member forming a cham er and arranged within the casing containing a source of light, and means for circulating a cooling medium through the casing.

3. An apparatus of the class described a casing havin a broad and substantially fiat compressingens, a trans arent serpentine member forming a cham er and amm ed within the casing contiguous to the lens, e ectrodes within the member and communicat ing with a source of electrical supply, means within the member and associatlng with the electrodes to constitute an illuminating source, and means for circulating a cooling medium through the casin In testimony whereof I ave hereunto set my hand in presence of two subscribing witnesses.

ERNST KROMAYER.

Witnesses HENRY HasPnR, WoLnnnAit HAUPT. 

